Is there more ways to hook drawing.I mean i want make some background to make visible drew foreground.Can i do this with polycounts and or textures and to i need to use only depth test and blending or is there other ways

please rephrase your question. I didn''t understand what you want, and I guess that''s why nobody replies.

I mean i want to make objects that are behind other object visible.Like GL_depth_test is there other ways or just that one

Depth testing is exactly what you need.
Though, you can do it also with the stencil buffer but in that case that''s up to you to tell OpenGL which object is behind an which object is in front of the others.

Ok i want to try that.Can u tell some link or codesnippet how the code should look like

You''re at NeHe Productions here.
Check out NeHe Productions'' homepage at http://nehe.gamedev.net
There is a stencil buffer tutorial in the OpenGL tutorials section.

Is there a example of depth sorting or reverse painter's algorithm.And what they do

BTW the stencil test makes my fps go down and at the end application hangs.Why is it so.

[edited by - madc0d3r on July 24, 2003 6:25:41 AM]